Using the point E_b and the point H_b, construct a line h_b (rule W02);

% DET: points E_b and H_b are not the same

Using the point H_b and the line h_b, construct a line b (rule W10a);

Choose freely a point C on the line b (rule WOnline2)

Using the point C and the point H_b, construct a line m(CH_b) (rule W14);

% DET: points C and H_b are not the same

Using the point E_b and the point H_b, construct a line m(E_bH_b) (rule W14);

% DET: points E_b and H_b are not the same

Choose freely a point A on the line b (rule WOnline1)

Using the point A and the point C, construct a point M_b (rule W01);

Using the point E_b and the point M_b, construct a line m(H_aH_c) (rule W02);

% DET: points E_b and M_b are not the same

Using the line m(E_bH_b) and the line m(H_aH_c), construct a point N (rule W03);

% NDG: lines m(E_bH_b) and m(H_aH_c) are not parallel

% DET: lines m(E_bH_b) and m(H_aH_c) are not the same

Using the point E_b and the point N, construct a circle k(N,M_a) (rule W06);

% NDG: points E_b and N are not the same

Using the circle k(N,M_a) and the line m(CH_b), construct a point M_a and a point E_c (rule W04);

% NDG: line m(CH_b) and circle k(N,M_a) intersect

Using the point C and the point M_a, construct a point B (rule W01);